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7 records (took 0.023 seconds)

    1.
    发明专利
    未知

    公开(公告)号：AT502341T

    公开(公告)日：2011-04-15

    申请号：AT05738535

    申请日：2005-04-21

    Applicant: NETWORK APPLIANCE INC

    Inventor： EDWARDS JOHN ,  FAIR ROBERT

    IPC: G06F17/30 ,  G06F3/06 ,  G06F12/16

    Abstract: A cloning technique enables efficient and substantially instantaneous creation of a clone that is a writable copy of a "parent" virtual volume (vvol) in an aggregate of a storage system. A base snapshot is provided from the parent vvol. In addition, a new vvol is created, along with a new file system identifier, a new subdirectory in the aggregate and a new storage label file. The new vvol is embodied as a clone and comprises an appropriately sized container file, wherein initially the container file has no data. Moreover, a volume information (volinfo) block for the clone is created that is a slightly modified version of the volinfo block from the base snapshot; the modified volinfo block is written to the container file. The clone is then instantiated by loading a file system associated with the new vvol onto the clone and bringing the clone "online".

    5.
    发明专利
    未知

    公开(公告)号：AT509309T

    公开(公告)日：2011-05-15

    申请号：AT06734880

    申请日：2006-02-13

    Applicant: NETWORK APPLIANCE INC

    Inventor： HITZ DAVID ,  EDWARDS JOHN

    IPC: G06F3/06 ,  G06F17/30

    Abstract: A plurality of types of volumes are maintained, a volume being a logical arrangement of storage space on one or more data storage devices. A volume type field is used to designate the type of a particular volume, and a flexible volume paradigm is selected by the volume type field for interpreting data within a data structure written to a data storage device of the one or more data storage devices. A physical volume block number to virtual volume block number mapping pair (pvbn/vvbn pair) is designated by the volume type field, the pvbn/vvbn pair is used to translate a physical volume block number to a virtual volume block number. A request to write a data to a first block of the particular volume is received, a pvbn/vvbn pair is determined. The data is written to the physical block designated by the pvbn/vvbn pair.

    MULTIPLE CONCURRENT ACTIVE FILE SYSTEMS
    7.
    发明公开
    MULTIPLE CONCURRENT ACTIVE FILE SYSTEMS 有权
    多个同时活动的文件系统

    公开(公告)号：EP1535198A4

    公开(公告)日：2007-05-16

    申请号：EP03757323

    申请日：2003-06-03

    Applicant: NETWORK APPLIANCE INC

    Inventor： HITZ DAVID ,  EDWARDS JOHN ,  LEWIS BLAKE

    IPC: G06F12/00 ,  G06F17/30

    CPC classification number: G06F17/30067 ,  G06F2201/84 ,  Y10S707/99931 ,  Y10S707/99938 ,  Y10S707/99952 ,  Y10S707/99953

    Abstract: Maintenance of plural active file systems (100), wherein each of the active file systems initially access data (120) with another of the active file systems, and wherein changes made to each of the active file systems are not reflected in other active file systems. When a second active file system is created based on a first active file system, the first active file system and the second active file system initially share data. When changes are made to the first active file system, modified data is recorded in the first active file system in a location that is not shared with the second active file system in a location that is not shared with the second active file system. When changes are made to the second active file system, modified data is recorded in the second active file system in a location that is not shared with the first active file system. Also, creation of the plural active file systems.

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